What English word has 9 letters and, if you take one letter away at a time*, it will still spell a word all 9 times. All the way down to one letter.
*The one letter taken away can be taken from any position.
I don't know how to turn the video into a link so for now unable to post a visual.
Hint: The word does not start with "a".
Or put another way, start with one letter. It has to be a word.
Now, adding one letter at a time, see how many words you can get up to. Can you make it to 9? Remember, the letter can be added anywhere.